Home / 18,815,228,821.84-28,222,843,223.04-7,025,268,028.72

Finding the Fourth Proportional to 18,815,228,821.84, 28,222,843,223.04 and 7,025,268,028.72

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Solution

The fourth proportional to 18,815,228,821.84, 28,222,843,223.04 and 7,025,268,028.72 is: 10,537,902,039.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,815,228,821.84 : 28,222,843,223.04 = 7,025,268,028.72 : x
  2. Step 2: Convert to fraction form
    18,815,228,821.84/28,222,843,223.04 = 7,025,268,028.72/x
  3. Step 3: Cross multiply
    18,815,228,821.84x = 28,222,843,223.04 × 7,025,268,028.72
  4. Step 4: Simplify right side
    18,815,228,821.84x = 198,273,038,174,399,856,640
  5. Step 5: Solve for x
    x = 198,273,038,174,399,856,640/18,815,228,821.84
  6. Step 6: Final answer
    x = 10,537,902,039.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.